When an untouched forest of ancient redwoods is discovered on Native American holy grounds in the Oregon wilderness, local loggers see only an opportunity to earn a living, not thinking of the ecological consequences of felling the trees. Anxious to preserve the wilderness, Kate sets off to stop the loggers, but once in the forest, she is catapulted 500 years into the past, where she is caught in a fatal struggle over the very same wilderness.
Daniel X is on an impossible mission: to eliminate every intergalactic criminal on the face of the Earth. The only way to stop Phosphorius Beta is by jumping back in time to the Dark Ages to end Beta's blistering reign before it has a chance to begin. But can Daniel X take the heat? Or will the alien hunter finally get burned? (Prequels: The Dangerous Days of Daniel X, Daniel X: Watch the Skies Sequel: Daniel X: Game Over)
When the CIA created a program to research time travel in the 1940s, they never imagined it could lead to a global pandemic decades later. But after an undercover agent, code name Cobra, exploits the time-travel operation to send the black plague into the twenty-first century, the supernatural teen spies of the Shadow Project are recruited to go back in time to Cold War-era Russia and prevent this devastating chain of events from occurring. (Prequel: The Shadow Project)
When thirteen-year-olds Jonah and Chip, who are both adopted, learn they were discovered on a plane that appeared out of nowhere, full of babies with no adults on board, they realize that they have uncovered a mystery involving time travel and two opposing forces, each trying to repair the fabric of time. (Sequels: Sent, Sabotaged, Torn, Caught)
Middle schooler Ryan is hit by a car and swept into this time-travel thriller. Ryan faces a number of narrow escapes as he learns how to use “leapholes” and law books to travel back in time to meet the people behind the cases that have established precedent for our time.